Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/9292
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dc.contributor.authorAaboud, M.-
dc.contributor.authorAad, G.-
dc.contributor.authorAbbott, B.-
dc.contributor.authorAbdallah, J.-
dc.contributor.authorAbdinov, O.-
dc.contributor.authorAbeloos, B.-
dc.contributor.authorAdams, D. L.-
dc.date.accessioned2022-12-25T20:26:56Z-
dc.date.available2022-12-25T20:26:56Z-
dc.date.issued2017-
dc.identifier.issn1029-8479-
dc.identifier.urihttps://doi.org/10.1007/JHEP02(2017)117-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/9292-
dc.description.abstractRatios of top-quark pair to Z-boson cross sections measured from proton-proton-collisions at the LHC centre-of-mass energies of root S = 13 TeV, 8 TeV, and 7 TeV are presented by the ATLAS Collaboration. Single ratios, at a given root S for the two processes and at different root S , for each process, as well as double ratios of the two processes at different root S , are evaluated. The ratios are constructed using previously published ATLAS measurements of the t (t) over bar and Z-boson production cross sections, corrected to a common phase space where required, and a new analysis of Z -> l(+)l(-) where l = e, mu at root S = 13 TeV performed with data collected in 2015 with an integrated luminosity of 3.2 fb(-1). Correlations of systematic uncertainties are taken into account when evaluating the uncertainties in the ratios. The correlation model is also used to evaluate the combined cross section of the Z -> e (+) e (-) and the Z -> mu (+) mu (-) channels for each value. The results are compared to calculations performed at next-to-next-to-leading-order accuracy using recent sets of parton distribution functions. The data demonstrate significant power to constrain the gluon distribution function for the Bjorken-x values near 0.1 and the light-quark sea for x < 0.02.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectParton Distributionsen_US
dc.subjectHadron Collidersen_US
dc.subjectQcd Analysisen_US
dc.subjectPlus Plusen_US
dc.subjectDecayen_US
dc.titleMeasurements of top-quark pair to Z-boson cross-section ratios at root s=13, 8, 7 TeV with the ATLAS detectoren_US
dc.typeArticleen_US
dc.departmentESTÜen_US
dc.identifier.issue2en_US
dc.identifier.startpage1en_US
dc.identifier.endpage54en_US
dc.authoridCasado, Pilar/0000-0002-0394-5646-
dc.authoridWo?niak, Krzysztof/0000-0003-1171-0887-
dc.authoridDavidek, Tomas/0000-0002-3770-8307-
dc.authoridPadilla, Cristobal/0000-0001-7951-0166-
dc.authoridIntrozzi, Gianluca/0000-0002-1314-2580-
dc.authoridOzcan, Veysi Erkcan/0000-0003-4643-6347-
dc.authoridPalka, Marek/0000-0002-7185-3540-
dc.identifier.wosWOS:000395022700001en_US
dc.identifier.scopus2-s2.0-85016562530en_US
dc.institutionauthor[Belirlenecek]-
dc.identifier.doi10.1007/JHEP02(2017)117-
dc.authorwosidCosta, Maria Jose/H-5962-2015-
dc.authorwosidCasado, Pilar/H-1484-2015-
dc.authorwosidDavidek, Tomas/P-2697-2017-
dc.authorwosidWo?niak, Krzysztof/AAQ-6119-2021-
dc.authorwosidPadilla, Cristobal/C-3218-2017-
dc.authorwosidIntrozzi, Gianluca/K-2497-2015-
dc.authorwosidParodi, Fabrizio/AHE-5089-2022-
dc.authorscopusid57189848621-
dc.authorscopusid26326745400-
dc.authorscopusid35226946900-
dc.authorscopusid16232226000-
dc.authorscopusid6507496079-
dc.authorscopusid57110456500-
dc.authorscopusid56536227400-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanen_US
dc.identifier.scopusqualityQ1-
dc.identifier.trdiziniden_US]
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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